US9993318B2 - Retention insert and connection device for dental applications - Google Patents

Retention insert and connection device for dental applications Download PDF

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Publication number
US9993318B2
US9993318B2 US14/401,914 US201314401914A US9993318B2 US 9993318 B2 US9993318 B2 US 9993318B2 US 201314401914 A US201314401914 A US 201314401914A US 9993318 B2 US9993318 B2 US 9993318B2
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Prior art keywords
retention
edge
holding
retention insert
insert
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US20150140512A1 (en
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Martin Bächler
Jürg Bächler
Roland Schaffner
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Institut Straumann AG
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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C8/00—Means to be fixed to the jaw-bone for consolidating natural teeth or for fixing dental prostheses thereon; Dental implants; Implanting tools
    • A61C8/0048—Connecting the upper structure to the implant, e.g. bridging bars
    • A61C8/005—Connecting devices for joining an upper structure with an implant member, e.g. spacers
    • A61C8/0062—Catch or snap type connection
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C13/00—Dental prostheses; Making same
    • A61C13/225—Fastening prostheses in the mouth
    • A61C13/265—Sliding or snap attachments
    • A61C13/2656—Snap attachments
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C8/00—Means to be fixed to the jaw-bone for consolidating natural teeth or for fixing dental prostheses thereon; Dental implants; Implanting tools
    • A61C8/008—Healing caps or the like

Definitions

  • the invention relates to a retention insert according to the preamble of independent claim 1 , and to an associated connection device.
  • Retention inserts with a substantially circular disk-shaped end face, and with a substantially ring-shaped retention edge which protrudes from the end face and has an outer surface, wherein the end face and the retention edge form a recess with an inner surface, which is designed corresponding to an outer surface of a head of a dental implant structure or capping structure, such that, by arranging the head in the recess, the retention insert can be snap-fitted onto the head, can be used for connecting a dental prosthesis structure to the dental implant structure or capping structure.
  • this connecting arrangement is designed as a press-fit connection, wherein typically a male part of the press-fit connection, i.e. the patrix, is formed on the abutment or implant, and a female part of the press-fit connection, i.e. the matrix, is connected to the prosthesis structure.
  • WO 2010025034 A1 describes a dental anchoring device comprising a patrix head, formed on the abutment or directly on the implant, and a matrix housing, which is securely connected to the prosthesis structure.
  • the matrix moreover comprises a retention insert, which is fitted into the matrix housing before the matrix is snap-fitted, together with the prosthesis structure, onto the patrix head.
  • the patrix head has a flat head end, and an outer surface curving outward in a convex shape and acting as a snap-fit surface.
  • an opening with an inner profile is let into the patrix head, through which opening, on the one hand, a screwing tool can engage for screwing the abutment or the implant and, on the other hand, a punch or stopper can clamp the retention insert.
  • the matrix is refined, inter alia, such that the retention insert is securely connected to the matrix housing via a locking mechanism when the matrix is snap-fitted onto the patrix.
  • the retention insert has a retention edge with several lamellae for ensuring an elasticity sufficient to snap-fit onto the patrix head and for compensating for uneven forces acting on the matrix, for example during chewing movements.
  • the shape of the lamellae of the retention edge can also determine the pulling-off or holding force of the retention insert and, therefore, of a prosthesis structure connected to it.
  • the object of the following invention is to propose an alternative retention insert and an alternative connection device suitable for a press-fit connection system, which permit an efficient and lasting connection of a prosthesis structure to a law bone and permit reliable handling when fitting and removing the prosthesis structure.
  • the object is achieved by a retention insert as defined in independent claim 1 and by a connection device as defined in independent claim 9 .
  • Advantageous variants of the invention are set forth in the dependent claims.
  • a retention insert for connecting a dental prosthesis structure to a dental implant structure or capping structure, that has a head designed for a press-fit connection, comprises a substantially circular disk-shaped end face, and a substantially ring-shaped retention edge, which protrudes from the end face and has an outer surface.
  • the end face and the retention edge form a recess with an inner surface, which is designed corresponding to an outer surface of the head of the dental implant structure or capping structure, such that, by arranging the head of the implant structure or capping structure in the recess of the retention insert, the retention insert can be snap-fitted onto the head of the implant structure or capping structure.
  • the retention insert with its end face closing the retention edge, can thus be substantially cup-shaped, which can be advantageous for reversible snap-fitting onto the head, or which may indeed permit such a snap-fitting.
  • the end face can close the retention edge to the extent that an interior enclosed by the retention edge is axially closed or is delimited by at least partial covering.
  • the end face can form a bottom or a top on which the head engages when snap-fitted and which thus limits a snap movement of the retention insert.
  • the retention edge can engage around the head and hold the retention insert on the head.
  • the end face has an opening, and, starting from an end of the retention edge directed away from the end face, a substantially axial slit extends through the retention edge and the end face to the opening of the end face.
  • the term “axial” is to be understood as a longitudinal axis of the retention insert extending from the end face in the direction of the end of the retention edge directed away from the end face.
  • the longitudinal axis can typically be at a right angle to the end face and extend centrally through the retention insert.
  • the head of the implant structure or capping structure is normally guided along the longitudinal axis into the recess of the retention insert.
  • implant structure or capping structure is to be understood, in connection with the invention, as any desired structure that is firmly connected to the jaw bone and that comprises means for releasably securing the prosthesis structure.
  • these may include one-part implants, for example with a patrix head, corresponding implant/abutment combinations or capped teeth.
  • capped teeth are not always explicitly mentioned below, they are nonetheless included as an alternative when implant structures are mentioned.
  • prosthesis structure is to be understood as meaning various structures that may be suitable according application, for example those known as replacements for a single tooth, part of a tooth or a whole tooth, bridges, crowns, hybrid or total prostheses.
  • the head of the dental implant structure or capping structure can in particular be a patrix head of a press-fit connection.
  • Such patrix heads can typically comprise a snap-fit portion which be designed corresponding to a matrix and in particular to a recess of the retention insert thereof.
  • the end face normally forms an occlusal end of the retention insert.
  • the end directed away from the end face normally forms en apical end of the retention insert.
  • the superstructure can comprise the prosthesis structure, a matrix of a press-fit connection, which can comprise the retention insert and a matrix housing or a holding shell, and, in the case of a two-part design of the implant structure, an abutment or at least parts and in particular a patrix of the press-fit connection.
  • the slit of the retention insert according to the invention is a relatively simple structure which ensures that the retention insert, and in particular the retention edge thereof, has sufficient elasticity for snap-fitting onto the head or patrix head.
  • a spring force from the retention edge can therefore act on the head, such that the retention insert and parts connected thereto are clamped on the head.
  • the retention edge of the retention insert can move back resiliently to its original position after it is removed from the head, such that the retention insert is sub lent to relatively little stress and can have a relatively long useful life.
  • this retention edge and this opening also have the effect that inaccuracies in the position of the implant structure and in particular disparalielism and forces acting from different directions can be compensated for without the retention insert or parts thereof being substantially squeezed or similarly deformed.
  • the slit of the retention insert is substantially straight.
  • the slit and the retention insert can thus be produced in a relatively simple way.
  • the slit can also extend substantially parallel to the longitudinal axis of the retention insert or can intersect the retention edge at right angles to the end face.
  • the slit can also be designed widening out and/or arranged obliquely and/or it can extend in a spiral shape along the retention edge in the direction of the end face.
  • the retention insert can also have a plurality of slits.
  • the opening of the end face is designed as a bore.
  • the bore preferably describes a substantially circular cross section. This permits simple and expedient production of the retention insert.
  • the end face of the retention insert can also have a plurality of openings, particularly if there are several slits.
  • the opening of the end face is slit-shaped.
  • the corresponding provision of one or more slit-shaped openings in the end face of the retention insert permits a relatively simple and useful structure.
  • the retention edge of the retention insert has a projection protruding substantially radially from the outer surface.
  • This projection can in particular extend along substantially the entire circumference of the retention edge.
  • the projection can act as part of a locking mechanism for blocking the retention insert in the holding shell or the matrix housing.
  • the configuration according to the invention with a slit and an opening in the end face can ensure that, despite the firm connection of the retention insert in the holding shell or in the matrix housing, there is sufficient flexibility to take up and compensate for non-axial forces.
  • the retention insert, particularly for uses with such a locking mechanism, can thus permit long-lasting and convenient handling.
  • the retention edge of the retention insert has an inner surface which is opposite the outer surface and which is rounded toward the end of the retention insert directed away from the end face.
  • the connection device is centered when fitted onto the male part of the press-fit connection or the head of the implant structure and, on the other hand, a force is applied continuously to the retention edge during this fitting. After the fitting has been completed, this force still remains, such that the retention edge is pressed and moved outward from the head and, in this way, a permanent or rigid connection between retention insert and holding shell or matrix housing is possible.
  • the retention insert is produced from a biocompatible polymer material, in particular from a polyether ether ketone.
  • a biocompatible polymer material in particular from a polyether ether ketone.
  • Other possible biocompatible materials are polyamides, for example polyhexamethylene adipic acid amide. Retention inserts of this kind can be produced easily. Moreover, such retention inserts can also be used in holistic medicine, in which there are specific requirements regarding the materials and in which, in particular, the use of titanium is not allowed.
  • a further aspect of the invention concerns a connection device for connecting a dental prosthesis structure to a dental implant structure or capping structure.
  • the connection device comprises a holding shell with an end face and a substantially ring-shaped holding edge protruding therefrom, and a retention insert as described above.
  • the holding edge and the end face of the holding shell form a recess in which the retention insert can be arranged such that an outer surface of the retention edge of the retention insert lies at least partially at a distance from and adjacent to an inner surface of the holding edge of the holding shell when the retention insert is arranged in the recess of the holding shell and when substantially no radial forces act on the holding edge of the holding shell and on the retention edge of the retention insert.
  • connection device can be provided in particular as a female part or matrix of a press-fit connection.
  • the term “holding shell” refers in particular to a housing of the matrix or to a matrix housing.
  • the outer surface of the retention edge and the inner surface of the holding edge can have any suitable shape, for example a substantially plane shape or a substantially curved shape.
  • the holding shell can be firmly connected to the prosthesis structure, for which purpose it can be cast, for example, in a synthetic prosthesis material.
  • the holding shell can also have suitable means such as one or more notches on its outer surface.
  • the end face of the holding shell can be substantially circular disk-shaped and provided with an opening or, in particular, completely closed.
  • the holding edge can protrude substantially at a right angle from the circumference of the end face of the holding shell.
  • the adjacent outer surface of the retention edge and inner surface of the holding edge are at least partially not in contact with each other but instead spaced apart from each other when substantially no radial forces act on the holding edge of the holding shell and on the retention edge of the retention insert, it is possible, among other things, to ensure that the retention insert is connected relatively loosely to the holding shell when the connection device has not yet been fitted onto the head of the implant structure.
  • This loose connection is sufficient for holding the retention insert in the holding shell, so as to allow comfortable handling.
  • This loose connection can also allow the retention insert to be relatively easily removed from and inserted into the holding shell without having to be substantially deformed or stressed in any other way for this purpose. Thus, it is possible to insert and remove the retention insert gently, which can improve the flexibility and lifetime of the connection device.
  • connection device When the connection device is connected to the implant structure as intended, such that the head of the implant structure is inserted or snapped into the retention insert, radial forces from the head can act on the retention edge of the retention insert. These forces can press the retention edge in the direction of the holding edge of the holding shell, such that the retention edge is moved in the direction of the holding edge. On account of the slit and the opening, the retention edge can thus be moved in a resilient manner in the direction of the holding edge, without being substantially squeezed or similarly deformed.
  • the retention insert can be firmly connected to the holding shell when the prosthesis structure is connected by means of the connection device to the implant structure.
  • the abovementioned spring force from the moved retention edge can act on the head, such that the connection device is clamped on the head.
  • the outer surface of the retention edge of the retention insert is arranged at least partially at a distance from and adjacent to the inner surface of the holding edge of the holding shell, since the outer surface of the retention edge of the retention insert is at least partially more strongly inclined in the direction of a central axis of the connection device than the inner surface of the holding edge of the holding shell.
  • the “central axis” corresponds to the mid axis or longitudinal axis of the holding shell or retention insert, which is substantially perpendicular to the respective end face, wherein it can extend in particular perpendicularly through the center point of the respective end face if, for example, these are substantially disk-shaped.
  • the term “inclined in the direction of the central axis of the connection device” refers to an inclination of the outer surface of the retention edge or the inner surface of the holding edge relative to the associated end face. This inclination can correlate with an angle between the outer surface of the retention edge or the inner surface of the holding edge and the associated end face, wherein in this case, according to the invention, the angle between the outer surface of the retention edge and the associated end face is smaller than the angle between the inner surface of the holding edge and the associated end face.
  • the mentioned stronger inclinator of the outer surface of the retention edge as compared to the inclination of the inner surface of the holding edge can lead to a space being formed between the outer surface of the retention edge and the inner surface of the holding edge, which space can increase in size starting from the end faces.
  • the adjacent outer surface of the retention edge and inner surface of the holding edge are at least partially not in contact with each other but instead spaced apart from each other when the retention insert is arranged in the recess of the holding shell and when substantially no radial forces act on the holding edge of the holding shell and on the retention edge of the retention insert.
  • the retention edge of the retention insert has a projection protruding radially from the outer surface of the retention edge of the retention insert
  • the holding edge of the holding shell has a corresponding groove extending radially from the inner surface of the holding edge of the holding shell.
  • the groove can in particular extend along substantially the entire circumference of the holding edge.
  • the projection of the retention edge of the retention insert can preferably be arranged in the groove of the holding edge of the holding shell such that the retention insert is held releasably in the holding shell when the retention insert is arranged in the recess of the holding shell and when substantially no radial forces act on the holding edge of the holding shell and on the retention edge of the retention insert.
  • the projection can thus be arranged only partly in the groove when substantially no radial forces act on the holding edge of the holding shell and on the retention edge of the retention insert, such that the retention insert is held sufficiently firmly in the holding shell, so as to be held therein, but nevertheless loosely enough to ensure that it can be easily removed from the holding shell.
  • the projection of the retention edge of the retention insert comprises a substantially plane projection support surface
  • the groove of the holding edge of the holding shell comprises a substantially plane groove support surface
  • a part of the projection support surface hears on a part of the groove support surface when the retention insert is arranged in the recess of the holding shell and when substantially no radial forces act on the holding edge of the holding shell and on the retention edge of the retention insert
  • the groove support surface is rounded toward its end directed toward the retention insert and/or the projection support surface is rounded toward its end directed toward the holding shell.
  • the groove support surface can be rounded away from the projection support surface and the projection support surface can be rounded away from the groove support surface.
  • the projection support surface of the projection of the retention insert can in particular be configured so as to face substantially away from the end face of the retention insert, and the groove support surface of the groove of the holding shell can in particular be configured so as to face substantially toward the end face of the holding shell.
  • the projection of the retention edge of the retention insert can be arranged in the groove of the holding edge of the holding shell such that the retention insert is connected non-releasably to the holding shell when the retention insert is arranged in the recess of the holding shell and when a radial force acts on the retention edge of the retention insert in the direction of the holding edge of the holding shell and/or acts on the holding edge of the holding shell in the direction of the retention edge of the retention insert.
  • the holding edge and the retention edge can be moved relative to each other such that the projection is arranged further or completely in the groove and the retention insert is thus connected permanently or rigidly to the holding shell or blocked.
  • the radial force can be applied to the retention edge and maintained in particular by the head of the implant structure.
  • the holding shell is produced from a biocompatible polymer material, in particular from a polyether ether ketone.
  • biocompatible materials are polyamides, for example polyhexamethylene adipic acid amide.
  • Connection devices of this kind can be produced easily.
  • such connection devices can also be used in holistic medicine, in which there are specific requirements regarding the materials and in which, in particular, the use of titanium is not allowed.
  • the holding shell can also be produced from titanium.
  • FIG. 1 shows a perspective view of an illustrative embodiment of a retention insert according to the invention
  • FIG. 2 shows a sectional side view of the retention insert from FIG. 1 ;
  • FIG. 3 shows a sectional side view of an illustrative embodiment of a connection device according to the invention with the retention insert from FIG. 1 and with a matrix housing as holding shell.
  • FIG. 1 shows a first illustrative embodiment of a retention insert 1 according to the invention in a perspective view
  • FIG. 2 shows a sectional view of the same retention insert 1 , wherein the sectional plane runs centrally through a slit. 14 , such that the slit 11 is shown to the right in FIG. 2
  • the substantially pot-shaped retention insert 1 comprises a substantially circular disk-shaped end face 12 , and a substantially ring-shaped retention edge 11 protruding at an angle from the circumference thereof.
  • the retention edge 11 has an outer surface 114 , and an inner surface 112 opposite the outer surface 114 , wherein the inner surface 112 is rounded outwardly toward the open end of the retention insert 1 , i.e.
  • the inner surface 112 has an upper, inwardly carved portion with a positive radius of curvature, which merges into the outwardly curved portion 113 with a negative radius of curvature.
  • the inner surface 112 of the retention edge 11 forms, together with an inner surface or lower surface of the end face 12 , a recess of the retention insert 1 .
  • the outwardly curved portion 113 merges into a plane portion 116 , which forms the end of the retention insert 1 directed away from the end face 12 .
  • the plane portion 116 can correspond to the apical end of the retention insert 1 .
  • the outer surface 114 of the retention edge 11 is angled with respect to the end face 12 , such that it is inclined inwardly in the direction of a central axis 15 of the retention insert 1 .
  • a bolt-shaped projection 13 or bar protrudes radially from the outer surface 114 of the retention edge 11 and extends about the entire circumference of the retention edge 11 .
  • the projection 13 comprises a plane radial outer face, a plane top face arranged at right angles thereto and directed toward the end face 12 , and a plane bottom face which is arranged opposite the top face, is directed away from the end face 12 and defines a projection support surface 131 .
  • the projection 13 extends radially outward beyond the rest of the retention insert 1 .
  • an engagement notch 115 is formed adjacent to the projection 13 on the outer surface 114 .
  • the retention insert 1 can be held using a suitable assembly tool, such as is described in WO 2011/027229 A2, for example. In this way, the retention insert 1 can be mounted and manipulated in a preferred manner.
  • the end face 12 has a central round bore 121 as an opening.
  • the slit 14 as arranged perpendicularly with respect to the end face 12 and is straight. From the plane portion 116 of the retention edge 11 , it extends through the entire retention edge 11 and the end face 12 to the bore 121 . Thus, the bore 121 is connected to the open end of the retention insert 1 by the slit 14 .
  • the retention insert 1 is produced entire from polyether ether ketone, wherein alternatively another biocompatible polymer material or non-polymer material can be used.
  • FIG. 3 shows an illustrative embodiment of a connection device 3 with a matrix housing 2 as holding shell and with the retention insert 1 in cross section, wherein the sectional plane, in comparison to FIG. 2 , is turned about the longitudinal axis 15 of the retention insert 1 , such that the slit 14 is shown to the front.
  • the substantially pot-shaped matrix housing 2 has a substantially circular disk-shaped closed end face 22 and, protruding at an angle from the circumference thereof, a substantially ring-shaped holding edge 21 .
  • the holding edge 21 comprises an inner surface 212 , and two notches 211 which are formed on an outwardly curved outer face and are arranged at different heights and extend about the entire circumference of the holding edge 21 .
  • the inner surface 212 of the holding edge 21 merges into an outwardly inclined portion 213 .
  • a groove 23 is formed in the holding edge 21 , which groove 23 comprises an inner surface, a bottom surface arranged at right angles thereto and directed away from the end face 22 , and a groove support surface 231 likewise arranged at right angles thereto and directed toward the end face 22 .
  • the matrix housing 2 is produced entirely from polyether ether ketone, wherein alternatively another biocompatible polymer materiel or non-polymer material, for example titanium, can also be used.
  • the retention insert 1 in FIG. 3 has been pushed, with its end face 12 first, through the open end of the matrix housing 2 and into the matrix housing 2 , until the end face 12 of the retention insert 1 bears on the end face 22 of the matrix housing 2 .
  • the inclined portion 213 of the inner surface 212 of the holding edge 21 serves to center and guide the retention insert 1 with respect to the matrix housing 2 .
  • the central axis 15 of the retention insert 1 and a central axis 25 of the matrix housing 2 lie at the same location and together form a central axis of the connection device 3 .
  • connection device 1 forms one unit.
  • the matrix housing 2 is mounted firmly on a prosthesis structure.
  • a prosthesis structure For this purpose, it can be cast in a synthetic prosthesis material, for example, wherein the notches 211 of the holding edge 21 contribute to a reliable firm connection between matrix housing 2 and prosthesis structure.
  • an implant structure with a head designed for a press-fit connection, or patrix head is implanted in a jaw hone as intended.
  • the retention insert 1 is pushed axially into the matrix housing 2 until the retention insert 1 is arranged and held in the matrix housing 2 .
  • the retention insert 1 is gently clamped over the projection support surface 131 between the end face 22 of the matrix housing 2 and the groove support surface 231 of the matrix housing 2 , such that the retention insert 1 is held in the matrix housing 2 and thus the prosthesis structure.
  • the prosthesis structure is then arranged on the implant structure, such that the head of the implant structure bears on the retention insert 1 of the connection device 3 . Thereafter, the prosthesis structure is pressed onto the implant structure, such that the retention insert 1 is pressed axially onto the head of the implant structure.
  • the connection device 3 is centered by the outwardly curved portion 113 of the retention edge 11 . Moreover, a radial force increasing over this outwardly curved portion 113 acts on the retention edge 11 , as a result of which the slit 14 and the bore 121 of the retention insert 1 widen, or as a result of which the retention insert 1 is spread open.
  • the retention edge 11 of the retention insert 1 is thus moved in the direction of the holding edge 21 of the matrix housing, such that the projection 13 is arranged in the groove 23 in such a way that the retention insert 1 is connected non-releasably to the matrix housing 2 or blocked.
  • the head of the implant structure is snapped into the connection device 3 .
  • the head is enclosed in the portion of the inner surface 112 of the retention edge 11 of the retention insert 1 that is curved inwardly with a positive radius of curvature, wherein it is held by the elastic or resilient forces of the retention edge 11 that act in the direction of the central axis and that are induced by the movement of the retention edge 11 . Accordingly, the head is held more strongly the greater these elastic forces are.
  • These elastic forces also depend, among other things, on the material from which the retention insert 1 is produced and on the shape of the bore 121 and of the lit 14 in the retention insert 1 .
  • the retention insert 1 can be modified elastically in terms of its diameter, or spread open, by means of the slit 14 and the bore 121 .
  • this also has the effect that, during the insertion of the retention insert 1 into the matrix housing 2 , the slit 14 and the bore 121 are briefly narrowed and then expanded again, such that the retention insert 1 can be easily clicked into the matrix housing 2 .
  • the present disclosure also comprises embodiments with any combination of features that are mentioned or shown above or below in respect of different embodiments. It likewise comprises individual features in the figures, even if they are shown there in connection with other features and/or if they are not mentioned above or below. Moreover, the alternatives of embodiments described in the figures and the description, and individual alternatives of the features thereof, may be excluded from the subject matter of the invention or from the disclosed subject matter.
  • the disclosure comprises embodiments which exclusively comprise the features described in the claims and in the illustrative examples and also those that comprise additional other features.
  • the term “comprise” and derivations thereof do not exclude other elements or steps.
  • the indefinite article “a” or “an” and derivations thereof do not exclude a plurality.
  • the functions of several of the features mentioned in the claims can be fulfilled by a unit or a step.
  • the term “approximately”, in connection with a given numerical value or range can relate to a value or range lying within 20%, within 10%, within 5% or within 2% of the given value or range. All the reference signs in the claims are not to be understood as limiting the scope of the claims.

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  • Health & Medical Sciences (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Dentistry (AREA)
  • Epidemiology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Orthopedic Medicine & Surgery (AREA)
  • Dental Prosthetics (AREA)
  • Prostheses (AREA)
  • Adhesives Or Adhesive Processes (AREA)
US14/401,914 2012-05-21 2013-05-17 Retention insert and connection device for dental applications Active 2034-02-25 US9993318B2 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
EP12168613.3A EP2666437A1 (de) 2012-05-21 2012-05-21 Retentionseinsatz und Verbindungsvorrichtung für dentale Applikationen
EP12168613.3 2012-05-21
EP12168613 2012-05-21
PCT/EP2013/060224 WO2013174738A1 (de) 2012-05-21 2013-05-17 Retentionseinsatz und verbindungsvorrichtung für dentale applikationen

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US20150140512A1 US20150140512A1 (en) 2015-05-21
US9993318B2 true US9993318B2 (en) 2018-06-12

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US14/401,914 Active 2034-02-25 US9993318B2 (en) 2012-05-21 2013-05-17 Retention insert and connection device for dental applications

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US (1) US9993318B2 (da)
EP (2) EP2666437A1 (da)
JP (2) JP2015517362A (da)
KR (1) KR102131222B1 (da)
CN (1) CN104768494B (da)
BR (1) BR112014029096B8 (da)
CH (1) CH708247B1 (da)
DE (1) DE212013000120U1 (da)
ES (1) ES2562679T5 (da)
WO (1) WO2013174738A1 (da)

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US8747112B2 (en) 2011-12-30 2014-06-10 Nobel Biocare Services Ag Abutment position locator
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KR20150030663A (ko) 2015-03-20
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BR112014029096B1 (pt) 2020-12-15
WO2013174738A1 (de) 2013-11-28
JP2015517362A (ja) 2015-06-22
CN104768494A (zh) 2015-07-08
DE212013000120U1 (de) 2015-01-16
EP2666437A1 (de) 2013-11-27
KR102131222B1 (ko) 2020-07-08
BR112014029096B8 (pt) 2022-08-02
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ES2562679T3 (es) 2016-03-07
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